Larian loves their surfaces.
One thing I liked about dos2 was the mechanic of stacking a status, like first cold arrow sets "cold" then if hit by a cold spell it sets "really cold" lol.

I changed the wet status in one of my mods from vulnerable to cold/ lightning to take extra dmg per spell level. In a comp game this is easy to do.

With another mod sneak is able toggle so can be used with diff attacks

Removing surfaces from arrows seems ok.